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https://issues.apache.org/jira/browse/HBASE-18398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119186#comment-16119186
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Ashu Pachauri edited comment on HBASE-18398 at 8/8/17 11:42 PM:
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The region that's being written to in the test is split by the 
IncreasingToUpperBoundRegionSplitPolicy, while in the middle of the snapshot 
operation, that causes the snapshot to fail.


was (Author: ashu210890):
The region that's being written to is split by the 
IncreasingToUpperBoundRegionSplitPolicy, while in the middle of the snapshot 
operation, that causes the snapshot to fail.

> Snapshot operation fails with FileNotFoundException
> ---------------------------------------------------
>
>                 Key: HBASE-18398
>                 URL: https://issues.apache.org/jira/browse/HBASE-18398
>             Project: HBase
>          Issue Type: Sub-task
>          Components: snapshots
>            Reporter: Ashu Pachauri
>            Assignee: Ashu Pachauri
>             Fix For: 1.3.2
>
>         Attachments: HBASE-18398.branch-1.3.001.patch, 
> HBASE-18398.master.001.patch, HBASE-18398.master.002.patch
>
>
> Failing to take snapshot due to FileNotFoundException
>     * FlushSnapshotSubprocedure.RegionSnapshotTask takes a region level read 
> lock
>     * Call to HRegion#addRegionToSnapshot.
>     * Call to SnapshotManifest#addRegion. This gets the current list of store 
> files.
>     * RACE → File is marked as compacted away and HFileArchiver moves the 
> file to archive under store level lock.
>     * SnapshotManifest#addRegion visits the stale list of store files one by 
> one. It does a file.getStatus() call to get length of each file. Since the 
> file object still points to the original file, file.getStatus() fails with 
> FileNotFoundException.



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